AVA TOM TROSCIANKO AWARD APPLICATION FORM Applicants should be early career scientists (PhD students or within 5 years of obtaining their PhD) who are AVA members, or who are sponsored by an AVA member. Funds will cover the cost of a visit to ECVP and additionally must include a scientific visit to another location. Applications will be judged on the scientific merit of the ECVP abstract, and the additional visit. _____________________________________________________________ 1 Name (and title): Miss Cait Newport Date of Birth: *** Institutional Address: (For all correspondence) The University of Queensland School of Biomedical Sciences St Lucia, Queensland Australia, 4072 E-mail address: c.newport@uq.edu.au Telephone Number (day): *** Present appointment: PhD candidate _____________________________________________________________ 2 Degrees and awards, with dates obtained. Those holding a PhD should give the dates of submission and defence as well as the final award date. If currently studying for a PhD please give details of topic and supervisor). Bachelor of Science (hons) Marine Biology (Dalhousie University, Canada) Completed: June 2007 Ph.D. Candidate (The University of Queensland, Australia) Expected completion: January 2015 Supervisor: Dr Ulrike Siebeck Project topic: Object recognition in fish 1 ____________________________________________________________ 3 The award covers travel to the European Conference on Visual Perception and additionally MUST include a visit to at least one other location at a time close to that of the ECVP meeting. The additional activities can be for purposes of the candidate's choosing but they should be of a scientific nature. Outline the details of your intended visit(s), including (a) scientific purpose, (b) location(s) to be visited and reasons why such visit(s) are essential to your scientific purpose. If your plans include a laboratory visit or special access to other facilities, please enclose a letter of agreement from the lab leader / facility custodian: Scientific purpose As part of my PhD project, I am studying what visual information is required by fish to discriminate complex patterns, such as the unique facial patterns found on reef fish. In the past, it has been practically impossible to design visual signalling experiments that comprehensively analyse patterns because natural patterns are so complex. Attempting to test the individual importance of all the visual information would require a vast number of experiments. Alternatively, a limited number of salient features could be tested, however, selection of these features can introduce significant experimenter bias. The advent of machine learning, a branch of artificial intelligence, may provide a solution that will eliminate the need to test every individual feature and instead identify underlying mechanisms. Based on example behavioural data, this machine learning can be used to mimic the behaviour of an animal, extract the learning rules and use them to predict how the animal would respond to previously untested stimuli, which can then be verified experimentally. The application of machine learning to the study of animal sensory systems has recently been pioneered by Prof. Franz to study the echolocation calls of bats. I aim to apply this technique for the first time to the study of fish visual perception and I will be visiting Prof. Franz at his laboratory in Konstanz, Germany, to learn how it is done. Locations to be visited I will be travelling from Brisbane, Australia, to Zurich, Switzerland, where I will then take a train to Konstanz, Germany, to visit The University of Applied Sciences for three weeks. I will then fly to Hamburg and take a further train to reach Bremen to attend the ECVP meeting. Reasons for visit The aim of my project is to look at how complex patterns are perceived by fish. This project relies on an innovative combination of animal behaviour experiments and modern engineering techniques and Prof. Franz is one of very few people in the world who have the expertise for this ambitious project. Prior to my visit I will have collected a large amount of behavioural data describing the discrimination abilities of reef fish for conspecific facial patterns that have been manipulated in various global ways (e.g. low and high-pass 2 frequency filtering, size transformations etc). In Konstanz, machines will be trained to the same stimuli until their performance matches that of the fish. The tricky part is then the extraction of the learning rules (reverse engineering), which has only been done a few times before. Prof Franz is part of the team who pioneered this technique and is therefore the best possible person to approach to make this project work. By learning from Prof. Franz, I will not only be able to apply his technique but also improve the design of future experiments, as I will have a more fundamental understanding of what can be achieved with machine learning approaches. The results of this work will likely be applicable to a wide field, including the field of visual perception. After my stay in Konstanz I will then travel to Bremen for the ECVP meeting where I will have an opportunity to present results of a recent experiment showing that archerfish can discriminate human faces. This will be a great opportunity for me to learn about other research but it will also be a chance to describe to others how fish can be used as a model to study visual perception in an animal without a cortex. _____________________________________________________________ 4 Please provide a copy of your submitted ECVP abstract here: There are currently two conflicting theories of how humans recognise faces: (i) recognition processes are innate, relying on specialised cortical circuitry, and (ii) recognition uses the same neural circuitry as other object classes and is simply a learned expertise. One method to determine the underlying mechanisms is to ask whether animals without specialised neural circuitry, or indeed a cortex, can complete this task. We tested fish to determine whether they could learn to discriminate human faces. Using a two-alternative forcedchoice test, four archerfish (Toxotes chatareus) were trained to select a rewarded face image. All fish could select the correct face from 45 distractors with an accuracy of over 75% (p<0.05). Humans tested using the same stimuli reached a higher level of performance. However, archerfish performing a much simpler task involving shapes (e.g. cross and square) revealed similar levels of performance, suggesting that fish find human faces just as easy to discriminate as shapes. This study provides the first behavioural evidence that an animal lacking a cortex, and relatively little exposure to human faces, can nonetheless discriminate them to a high degree of accuracy. Our results suggest that a substantial part of the face discrimination task can be learnt. 5 Details of all proposed expenditure with fares, subsistence and other expenditures clearly indicated Item Return airfare (Brisbane, Australia – Zurich, Switzerland) Local transport (Konstanz – Hamburg, Germany) Local transport (Zurich – Konstanz) 3 Total Cost £2045 £200 £70 Local transport (Hamburg – Bremen) Accommodation (Konstanz) Accommodation (Bremen) Subsistence Total £90 £336 £343 £1028 £2067 _____________________________________________________________ 6 For what amount are you applying? (normally we expect to award up to £1000 from AVA funds which may be topped up with additional funds from ECVP, therefore requests exceeding £1000 will be considered although we may offer partial funding): I am applying for £1039 to cover the costs of accommodation and local transport during my travels. _____________________________________________________________ 7 Other sources of assistance. Please give details of financial support that is assured from other sources and applications that have been or will be made. My supervisor has paid for the return airfare from Australia to Switzerland and will cover subsistence costs. Additionally, I have applied for a travel grant (Graduate School International Travel Award) from The University of Queensland but was unsuccessful. _____________________________________________________________ I apply for a Tom Troscianko Travel Award from the Applied Vision Association, and I declare that the details given above are correct to the best of my knowledge. I understand that a condition of the Award is to give a presentation about my visit at the ECVP business meeting and to provide AVA with a report on the ECVP conference attended, and the additional visit. The report will be sent to the Secretary of the AVA, no later than 3 months after returning from the visit. Signed __***___________________ Date _April 3, 2013____________________________ _____________________________________________________________ 4 Closing date: 24th March 2013 We intend to inform applicants of the outcome no later than the early registration deadline for ECVP Email this file as an attachment to: secretary@theava.net Applied Vision Association Secretary As well as this form, please ensure the AVA have been sent the following documents before the closing date: If not an AVA member a sponsoring letter from an AVA member. If visiting another lab a letter of agreement from the host institution. If planning to access to a controlled facility a letter of from the custodian agreeing to provide the required access. 5